This is an upgrade of a dual stack system where the ABAP part is currently in MAIN_PROFEND/GETSYNC_MODPROF_STARTED and the current JAVA step is "Restart System for Java-only".
Right before the ABAP system has been stopped in STOPSAP_FINAL but the JAVA part is trying to connect to the ABAP system because the ABAP system contains the UME (Please refer to KBBA 2484279).
Here is the error message in SUM logs:
Jul 18, 2017 3:16:58 AM [Error ]: A problem has occurred: com.sap.sdt.executor.exception.StepExecutionException: Problem while trying to execute operation on service restart-system-javaonly. The following problem has occurred java.lang.reflect.InvocationTargetException. CSN Component BC-UPG-TLS-TLJ.
Could not check status of SAP instance with number 0.
Could not check if the instance number 0 on host xxxxx is started.
Sapcontrol client could not perform action wait for started on instance 0
Return code condition success evaluated to false for process sapcontrol for action wait for started.
Service [com.sap.security.core.ume.service] start ======= ERROR ======
CSN Component [BC-JAS-SEC-UME], DC Name [sap.com/com.sap.security.core.ume.service]
com.sap.engine.frame.ServiceException: Start of UME service failed. Check help topic "Start of UME Service Failed". Technical details: com.sap.conn.jco.JCoException: (103) JCO_ERROR_LOGON_FAILURE: Initialization of destination UMEBackendConnection failed: ########: ####### on localhost sysnr 00
FATAL: Critical shutdown with exit code  was requested due to [AS Java cannot be started; core service [com.sap.security.core.ume.service] failed to start]
All version of dual stack system
UME MAIN_PROFEND/GETSYNC_MODPROF_STARTED dual stack , KBA , BC-UPG-TLS-TLJ , Upgrade tools for Java , Problem
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